Stock Highlight: Thomson Reuters

Nasdaq OMX Group Inc. agreed to buy Thomson Reuters Corp. units that provide investor and public relations and multimedia services for $390 million in cash as the second-largest U.S. equity exchange seeks to diversify.

Thomson Reuters has a sizable operation in downtown Rochester, though the work done locally isn't part of the units being sold to Nasdaq.

The deal is expected to close in the first half of 2013 and the divisions will be integrated into Nasdaq's Corporate Solutions business.